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Torch Azalea

Rhododendron kaempferi

Ericaceae · broadleaf evergreen shrub · introduced

Last updated

Data Coverage 5 of 6 dimensions
Site Data
Threats
Cultivars
Phenology
GDD Thresholds
Puget Sound

[VERIFY] Evergreen azaleas perform well in Puget Sound Zone 8b with proper siting. Acidic soil is essential; our native soils trend acidic which is favorable. Part shade is ideal; morning sun with afternoon shade reduces lace bug pressure. Good drainage is critical given our wet winters.

— Chris Welch, ISA Certified Arborist

Quick Facts

Height
4-8 ft
Spread
4-6 ft
Growth Rate
Moderate
Light
Part Shade
Soil
Well Drained
Water
Moderate
Hardiness
Zone Zones 5a–8b
Bloom Time
April-May
Fall Color
[verify]
Origin
Japan

Phenological Calendar

Stage Typical Window
New leaf + flower bud BBCH 11/51 Mar 15-Apr 15

Diseases (2)

Pests (1)

Cultivars (1)

'Johanna'
Deep red flowers; compact form; evergreen in Zone 8b
Observed at Issaquah, WA. Bright green new growth with red flower bud forming at center of leaf whorl.